198707267542 has 24 divisors (see below), whose sum is σ = 347689771920. Its totient is φ = 84923027280.

The previous prime is 198707267537. The next prime is 198707267597. The reversal of 198707267542 is 245762707891.

198707267542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2788809 + ... + 2859172.

It is an arithmetic number, because the mean of its divisors is an integer number (14487073830).

Almost surely, 2^198707267542 is an apocalyptic number.

198707267542 is a deficient number, since it is larger than the sum of its proper divisors (148982504378).

198707267542 is a wasteful number, since it uses less digits than its factorization.

198707267542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5648356 (or 5648349 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 58.

The spelling of 198707267542 in words is "one hundred ninety-eight billion, seven hundred seven million, two hundred sixty-seven thousand, five hundred forty-two".